Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5296656 | Sound collecting and concentrating device for attaching to the back of multiple loudspeakers | — | 1994-03-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5296656 | Sound collecting and concentrating device for attaching to the back of multiple loudspeakers | — | 1994-03-22 |